linux-kernel - [PATCH 2/4] staging: rdma: use kmalloc

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Date:	Sun,  8 Nov 2015 22:17:52 +0800
From:	Geliang Tang <geliangtang@....com>
To:	Doug Ledford <dledford@...hat.com>,
	Sean Hefty <sean.hefty@...el.com>,
	Hal Rosenstock <hal.rosenstock@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Mike Marciniszyn <infinipath@...el.com>
Cc:	Geliang Tang <geliangtang@....com>, linux-rdma@...r.kernel.org,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] staging: rdma: use kmalloc_array instead of kmalloc

Use kmalloc_array instead of kmalloc to allocate memory for an array.

Signed-off-by: Geliang Tang <geliangtang@....com>
---
 drivers/staging/rdma/amso1100/c2.c          | 6 ++++--
 drivers/staging/rdma/ipath/ipath_file_ops.c | 8 ++++----
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/rdma/amso1100/c2.c b/drivers/staging/rdma/amso1100/c2.c
index 35ac536..4e6d24a 100644
--- a/drivers/staging/rdma/amso1100/c2.c
+++ b/drivers/staging/rdma/amso1100/c2.c
@@ -116,7 +116,8 @@ static int c2_tx_ring_alloc(struct c2_ring *tx_ring, void *vaddr,
 	struct c2_element *elem;
 	int i;
 
-	tx_ring->start = kmalloc(sizeof(*elem) * tx_ring->count, GFP_KERNEL);
+	tx_ring->start = kmalloc_array(tx_ring->count, sizeof(*elem),
+				       GFP_KERNEL);
 	if (!tx_ring->start)
 		return -ENOMEM;
 
@@ -165,7 +166,8 @@ static int c2_rx_ring_alloc(struct c2_ring *rx_ring, void *vaddr,
 	struct c2_element *elem;
 	int i;
 
-	rx_ring->start = kmalloc(sizeof(*elem) * rx_ring->count, GFP_KERNEL);
+	rx_ring->start = kmalloc_array(rx_ring->count, sizeof(*elem),
+				       GFP_KERNEL);
 	if (!rx_ring->start)
 		return -ENOMEM;
 
diff --git a/drivers/staging/rdma/ipath/ipath_file_ops.c b/drivers/staging/rdma/ipath/ipath_file_ops.c
index 13c3cd1..6187b84 100644
--- a/drivers/staging/rdma/ipath/ipath_file_ops.c
+++ b/drivers/staging/rdma/ipath/ipath_file_ops.c
@@ -917,15 +917,15 @@ static int ipath_create_user_egr(struct ipath_portdata *pd)
 	chunk = pd->port_rcvegrbuf_chunks;
 	egrperchunk = pd->port_rcvegrbufs_perchunk;
 	size = pd->port_rcvegrbuf_size;
-	pd->port_rcvegrbuf = kmalloc(chunk * sizeof(pd->port_rcvegrbuf[0]),
-				     GFP_KERNEL);
+	pd->port_rcvegrbuf = kmalloc_array(chunk, sizeof(pd->port_rcvegrbuf[0]),
+					   GFP_KERNEL);
 	if (!pd->port_rcvegrbuf) {
 		ret = -ENOMEM;
 		goto bail;
 	}
 	pd->port_rcvegrbuf_phys =
-		kmalloc(chunk * sizeof(pd->port_rcvegrbuf_phys[0]),
-			GFP_KERNEL);
+		kmalloc_array(chunk, sizeof(pd->port_rcvegrbuf_phys[0]),
+			      GFP_KERNEL);
 	if (!pd->port_rcvegrbuf_phys) {
 		ret = -ENOMEM;
 		goto bail_rcvegrbuf;
-- 
2.5.0


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